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Question 436948: Circle the equation that are perpendicular.
y=5/4x-6, y=10, -4/5x-y=9, 5x-11y=7, 4y=5x-40
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Circle the equation that are perpendicular.
y=5/4x-6,
slope = 5/4
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y=10,
slope = 0
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-4/5x-y=9,
y = (-4/5)x-9
slope = -4/5
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5x-11y=7,
y = (5/11)x-(7/11)
slope = 5/11
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4y=5x-40
y = (5/4)x-40
slope = 5/4
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Lines with slopes of 4/5 and -5/4 are perpendicular
Lines with slopes of 5/4 and -4/5 are perpendicular
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Cheers,
Stan H.
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